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[Fix] Fix warning with torch.meshgrid. #860

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merged 3 commits into from
Sep 30, 2022
Merged

[Fix] Fix warning with torch.meshgrid. #860

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9ac3526
Fix warning with torch.meshgrid
pallgeuer May 30, 2022
f7a7bd2
Add torch_meshgrid_ij wrapper
pallgeuer Jun 7, 2022
c106dc1
Use `digit_version` instead of packaging package.
mzr1996 Sep 30, 2022
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9 changes: 8 additions & 1 deletion tests/test_models/test_utils/test_attention.py
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Original file line number Diff line number Diff line change
@@ -1,18 +1,25 @@
# Copyright (c) OpenMMLab. All rights reserved.
from functools import partial
from unittest import TestCase
from unittest.mock import ANY, MagicMock

import pytest
import torch
from mmcv.utils import TORCH_VERSION, digit_version

from mmcls.models.utils.attention import ShiftWindowMSA, WindowMSA

if digit_version(TORCH_VERSION) >= digit_version('1.10.0a0'):
torch_meshgrid_ij = partial(torch.meshgrid, indexing='ij')
else:
torch_meshgrid_ij = torch.meshgrid # Uses indexing='ij' by default


def get_relative_position_index(window_size):
"""Method from original code of Swin-Transformer."""
coords_h = torch.arange(window_size[0])
coords_w = torch.arange(window_size[1])
coords = torch.stack(torch.meshgrid([coords_h, coords_w])) # 2, Wh, Ww
coords = torch.stack(torch_meshgrid_ij([coords_h, coords_w])) # 2, Wh, Ww
coords_flatten = torch.flatten(coords, 1) # 2, Wh*Ww
# 2, Wh*Ww, Wh*Ww
relative_coords = coords_flatten[:, :, None] - coords_flatten[:, None, :]
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